HFDA801A is a new class D audio amplifier launched by STMicroelectronics. It is specially designed for automotive applications and uses the latest BCD technology.The HFDA801A integrates a 24-bits 120 dB DAC conversion, and features 2 MHz switching PWM class D output stage.

Operational amplifiers have various parameters. This article mainly discusses the slew rate parameters of operational amplifiers. Taking the ADA4622-1 commonly used in ADI products as an example, this parameter and its impact on amplifier performance are explained.

LM358D is a common dual op-amp (Dual Op-Amp), low-power design, very suitable for battery-powered or energy-saving surface mount technology (SMT) circuit design.